For the JPC Male files, place them in

GTA V/mods/update/x64/dlcpacks/eup/dlc/x64/eup_componetpeds/mp_m_freemode_01\

For the JPC Female files, place them in

GTA V/mods/update/x64/dlcpacks/eup/dlc/x64/eup_componetpeds/mp_f_freemode_01\